import { parseTime } from './cj'

/**
 * 表格时间格式化
 */
export function formatDate(cellValue: string | number | Date | null): string {
  if (cellValue == null || cellValue == '') return ''
  const date = new Date(cellValue)
  const year = date.getFullYear()
  const month = date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1
  const day = date.getDate() < 10 ? '0' + date.getDate() : date.getDate()
  const hours = date.getHours() < 10 ? '0' + date.getHours() : date.getHours()
  const minutes = date.getMinutes() < 10 ? '0' + date.getMinutes() : date.getMinutes()
  const seconds = date.getSeconds() < 10 ? '0' + date.getSeconds() : date.getSeconds()
  return year + '-' + month + '-' + day + ' ' + hours + ':' + minutes + ':' + seconds
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function formatTime(time: string | number, option?: string): string {
  if (('' + time).length === 10) {
    time = parseInt(time as string) * 1000
  } else {
    time = +time
  }
  const d = new Date(time)
  const now = Date.now()

  const diff = (now - d.getTime()) / 1000

  if (diff < 30) {
    return '刚刚'
  } else if (diff < 3600) {
    // less 1 hour
    return Math.ceil(diff / 60) + '分钟前'
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + '小时前'
  } else if (diff < 3600 * 24 * 2) {
    return '1天前'
  }
  if (option) {
    return parseTime(time, option) || ''
  } else {
    return (
      d.getMonth() + 1 + '月' + d.getDate() + '日' + d.getHours() + '时' + d.getMinutes() + '分'
    )
  }
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function getQueryObject(url?: string): Record<string, string> {
  url = url == null ? window.location.href : url
  const search = url.substring(url.lastIndexOf('?') + 1)
  const obj: Record<string, string> = {}
  const reg = /([^?&=]+)=([^?&=]*)/g
  search.replace(reg, (rs, $1, $2) => {
    const name = decodeURIComponent($1)
    let val = decodeURIComponent($2)
    val = String(val)
    obj[name] = val
    return rs
  })
  return obj
}

/**
 * @param {string} input value
 * @returns {number} output value
 */
export function byteLength(str: string): number {
  // returns the byte length of an utf8 string
  let s = str.length
  for (let i = str.length - 1; i >= 0; i--) {
    const code = str.charCodeAt(i)
    if (code > 0x7f && code <= 0x7ff) s++
    else if (code > 0x7ff && code <= 0xffff) s += 2
    if (code >= 0xdc00 && code <= 0xdfff) i--
  }
  return s
}

/**
 * @param {Array} actual
 * @returns {Array}
 */
export function cleanArray<T>(actual: (T | null | undefined | false)[]): T[] {
  const newArray: T[] = []
  for (let i = 0; i < actual.length; i++) {
    if (actual[i]) {
      newArray.push(actual[i] as T)
    }
  }
  return newArray
}

/**
 * @param {Object} json
 * @returns {Array}
 */
export function param(json?: Record<string, any>): string {
  if (!json) return ''
  return cleanArray(
    Object.keys(json).map((key) => {
      if (json[key] === undefined) return ''
      return encodeURIComponent(key) + '=' + encodeURIComponent(json[key])
    }),
  ).join('&')
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function param2Obj(url: string): Record<string, string> {
  const queryString = url.split('?')[1]
  if (!queryString) {
    return {}
  }
  const search = decodeURIComponent(queryString).replace(/\+/g, ' ')
  if (!search) {
    return {}
  }
  const obj: Record<string, string> = {}
  const searchArr = search.split('&')
  searchArr.forEach((v) => {
    const index = v.indexOf('=')
    if (index !== -1) {
      const name = v.substring(0, index)
      const val = v.substring(index + 1, v.length)
      obj[name] = val
    }
  })
  return obj
}

/**
 * @param {string} val
 * @returns {string}
 */
export function html2Text(val: string): string {
  const div = document.createElement('div')
  div.innerHTML = val
  return div.textContent || div.innerText || ''
}

/**
 * Merges two objects, giving the last one precedence
 * @param {Object} target
 * @param {(Object|Array)} source
 * @returns {Object}
 */
export function objectMerge<T extends Record<string, any>>(
  target: T,
  source: Record<string, any> | any[],
): T | any[] {
  if (typeof target !== 'object') {
    target = {} as T
  }
  if (Array.isArray(source)) {
    return source.slice()
  }

  // Add explicit check for null/undefined source
  if (source === null || source === undefined) {
    return target
  }

  // Ensure source is an object before calling Object.keys
  if (typeof source !== 'object') {
    return target
  }

  Object.keys(source).forEach((property) => {
    const sourceProperty = source[property]
    if (typeof sourceProperty === 'object' && sourceProperty !== null) {
      ;(target as Record<string, any>)[property] = objectMerge(
        (target as Record<string, any>)[property] ?? (Array.isArray(sourceProperty) ? [] : {}),
        sourceProperty,
      )
    } else {
      ;(target as Record<string, any>)[property] = sourceProperty
    }
  })
  return target
}

/**
 * @param {HTMLElement} element
 * @param {string} className
 */
export function toggleClass(element: HTMLElement, className: string): void {
  if (!element || !className) {
    return
  }
  let classString = element.className
  const nameIndex = classString.indexOf(className)
  if (nameIndex === -1) {
    classString += '' + className
  } else {
    classString =
      classString.substr(0, nameIndex) + classString.substr(nameIndex + className.length)
  }
  element.className = classString
}

/**
 * @param {string} type
 * @returns {Date}
 */
export function getTime(type: string): number | Date {
  if (type === 'start') {
    return new Date().getTime() - 3600 * 1000 * 24 * 90
  } else {
    return new Date(new Date().toDateString())
  }
}

/**
 * @param {Function} func
 * @param {number} wait
 * @param {boolean} immediate
 * @return {*}
 */
export function debounce<T extends (...args: any[]) => any>(
  func: T,
  wait: number,
  immediate: boolean = false,
): (...args: Parameters<T>) => ReturnType<T> | undefined {
  let timeout: number | null = null
  let args: IArguments | null = null
  let context: any = null
  let timestamp: number = 0
  let result: ReturnType<T> | undefined = undefined

  const later = function (): void {
    // 据上一次触发时间间隔
    const last = +new Date() - timestamp

    // 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
    if (last < wait && last > 0) {
      timeout = window.setTimeout(later, wait - last)
    } else {
      timeout = null
      // 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
      if (!immediate) {
        result = func.apply(context, args as any)
        if (!timeout) context = args = null
      }
    }
  }

  return function (this: any, ...params: Parameters<T>): ReturnType<T> | undefined {
    context = this
    args = params as any
    timestamp = +new Date()
    const callNow = immediate && !timeout
    // 如果延时不存在，重新设定延时
    if (!timeout) timeout = window.setTimeout(later, wait)
    if (callNow) {
      result = func.apply(context, params)
      context = args = null
    }

    return result
  }
}

/**
 * This is just a simple version of deep copy
 * Has a lot of edge cases bug
 * If you want to use a perfect deep copy, use lodash's _.cloneDeep
 * @param {Object} source
 * @returns {Object}
 */
export function deepClone<T>(source: T): T {
  if (source === null || typeof source !== 'object') {
    throw new Error('error arguments')
  }
  const targetObj: any = Array.isArray(source) ? [] : {}
  Object.keys(source).forEach((keys) => {
    const key = keys as keyof T
    if (source[key] !== null && typeof source[key] === 'object') {
      targetObj[key] = deepClone(source[key])
    } else {
      targetObj[key] = source[key]
    }
  })
  return targetObj
}

/**
 * @param {Array} arr
 * @returns {Array}
 */
export function uniqueArr<T>(arr: T[]): T[] {
  return Array.from(new Set(arr))
}

/**
 * @returns {string}
 */
export function createUniqueString(): string {
  const timestamp = +new Date() + ''
  const randomNum = parseInt(((1 + Math.random()) * 65536).toString()) + ''
  return (+(randomNum + timestamp)).toString(32)
}

/**
 * Check if an element has a class
 * @param {HTMLElement} elm
 * @param {string} cls
 * @returns {boolean}
 */
export function hasClass(ele: HTMLElement, cls: string): boolean {
  return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))
}

/**
 * Add class to element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function addClass(ele: HTMLElement, cls: string): void {
  if (!hasClass(ele, cls)) ele.className += ' ' + cls
}

/**
 * Remove class from element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function removeClass(ele: HTMLElement, cls: string): void {
  if (hasClass(ele, cls)) {
    const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)')
    ele.className = ele.className.replace(reg, ' ')
  }
}

export function makeMap(str: string, expectsLowerCase?: boolean): (val: string) => boolean {
  const map: Record<string, boolean> = Object.create(null)
  const list = str.split(',')
  for (let i = 0; i < list.length; i++) {
    map[list[i]!] = true
  }
  return expectsLowerCase ? (val) => !!map[val.toLowerCase()] : (val) => !!map[val]
}

export const exportDefault = 'export default '

export const beautifierConf: any = {
  html: {
    indent_size: '2',
    indent_char: ' ',
    max_preserve_newlines: '-1',
    preserve_newlines: false,
    keep_array_indentation: false,
    break_chained_methods: false,
    indent_scripts: 'separate',
    brace_style: 'end-expand',
    space_before_conditional: true,
    unescape_strings: false,
    jslint_happy: false,
    end_with_newline: true,
    wrap_line_length: '110',
    indent_inner_html: true,
    comma_first: false,
    e4x: true,
    indent_empty_lines: true,
  },
  js: {
    indent_size: '2',
    indent_char: ' ',
    max_preserve_newlines: '-1',
    preserve_newlines: false,
    keep_array_indentation: false,
    break_chained_methods: false,
    indent_scripts: 'normal',
    brace_style: 'end-expand',
    space_before_conditional: true,
    unescape_strings: false,
    jslint_happy: true,
    end_with_newline: true,
    wrap_line_length: '110',
    indent_inner_html: true,
    comma_first: false,
    e4x: true,
    indent_empty_lines: true,
  },
}

// 首字母大小
export function titleCase(str: string): string {
  return str.replace(/( |^)[a-z]/g, (L) => L.toUpperCase())
}

// 下划转驼峰
export function camelCase(str: string): string {
  return str.replace(/_[a-z]/g, (str1) => str1.substr(-1).toUpperCase())
}

export function isNumberStr(str: string): boolean {
  return /^[+-]?(0|([1-9]\d*))(\.\d+)?$/g.test(str)
}

export interface WeekDateItem {
  day: string
  weekDay: string
  date: string
  formatDates: string
}

// 获取一周的日期
export function getNextWeekDays(): WeekDateItem[] {
  const dates: WeekDateItem[] = []
  const weekdays = ['周日', '周一', '周二', '周三', '周四', '周五', '周六'] // 星期数组
  const now = new Date() // 当前日期
  const day = now.getDay() // 当前是周几（0 表示周日，1 表示周一，以此类推）
  const diff = now.getDate() - day + (day === 0 ? -6 : 1) // 计算本周一的日期
  // 获取本周的每一天
  for (let i = 0; i < 7; i++) {
    const date = new Date(now.setDate(diff + i))
    const year = date.getFullYear()
    const month = String(date.getMonth() + 1) // 月份从 0 开始，需要加 1
    const day = String(date.getDate())
    const month2 = String(date.getMonth() + 1).padStart(2, '0') // 月份从 0 开始，需要加 1
    const day2 = String(date.getDate()).padStart(2, '0')
    const weekday = weekdays[date.getDay()] // 获取对应的星期几
    dates.push({
      day,
      weekDay: weekday!,
      date: `${month}月${day}日`,
      formatDates: `${year}/${month2}/${day2}`,
    })
  }
  return dates
}
// 获取最近一周的日期
export function getWeekDates(cur?: string | Date | number): WeekDateItem[] {
  const dates: Date[] = []
  let currentDate: Date
  if (cur) {
    currentDate = new Date(cur)
  } else {
    currentDate = new Date()
  }
  currentDate.setHours(0, 0, 0, 0) // 设置为当天的午夜时间，避免时区问题

  // 获取近一周的日期
  for (let i = 0; i < 7; i++) {
    const date = new Date(currentDate)
    date.setDate(currentDate.getDate() + i) // 获取从今天开始的前i天
    dates.push(date)
  }

  // 获取星期几
  const weekdays = ['周日', '周一', '周二', '周三', '周四', '周五', '周六']
  const formattedDates: WeekDateItem[] = []
  // 格式化日期并显示星期几
  dates.map((date) => {
    const year = date.getFullYear()
    const month = String(date.getMonth() + 1).padStart(2, '0') // 月份从0开始，需要加1
    const day = String(date.getDate()).padStart(2, '0')
    const month2 = String(date.getMonth() + 1) // 月份从 0 开始，需要加 1
    const day2 = String(date.getDate())
    const weekday = weekdays[date.getDay()]
    formattedDates.push({
      day,
      weekDay: weekday!,
      date: `${month2}月${day2}`,
      formatDates: `${year}/${month}/${day}`,
    })
  })
  return formattedDates
}
